[Unanswered]  General Beypointer questions

Quite simply, I just got a Beypointer after wanting to revive my childhood and get back into bayblades, but I got them off eBay so they didn’t come with instructions, the details online are very limited, I figured out how to enter codes aswell as exchange points but something I can’t figure out is how to reset the thing, I know you press in on the little white button but I have no idea what to do after that. I also have no idea how the point system works or what dictates how many points you receive on a win. I know posts like this are pretty common but I can’t find anything talking about my issue that hasn’t just gone unanswered, any help is greatly appreciated!